| Roles | Competed in Olympic Games | |
|---|---|---|
| Sex | Male | |
| Full name | Alexander Stefan (Sándor István-)•Martonffy | |
| Used name | Alexander•Martonffy | |
| Born | 7 May 1919 in Oradea, Bihor |  ROU |
| Measurements | 169 cm / 73 kg | |
| Affiliations | ?, Victoria — ?, Victoria |  AUS |
| ?, New South Wales — ?, New South Wales | AUS | |
| NOC | Australia | AUS |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1956 Summer Olympics | Fencing | AUS |
Alexander Martonffy | |||
| Sabre, Individual, Men (Olympic) | ||||||
| Sabre, Team, Men (Olympic) | Australia | =7 | ||||
| 1964 Summer Olympics | Fencing | AUS |
Alexander Martonffy | |||
| Sabre, Individual, Men (Olympic) | 6 p7 r1/4 | |||||
| Sabre, Team, Men (Olympic) | Australia | 4 p2 r1/4 |
